TOSHIBA LTH15C503-A Specification
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SPECIFICATION(TENTATIVE)
FOR
Toshiba Matsushita Display Technology A-Grade TFT-LCD MODULE WITHOUT BACKLIGHT
LT H 1 5 C 503-A
N L - LT H 1 5 C 503-A- 01
DATE OF ISSUE : 2002-07-18
PC･Monitor-Use Marketing & Engineering Dept.
PC･Monitor-Use LCD Div.
Toshiba Matsushita Display Technology Co.,Ltd
1-9-2, Hatara-cho, Fukaya-shi, Saitama, 366-0032, JAPAN
Revision History
Date Rev. Sheet
(New)
Specification No.
Item Old New Reason
TENTATIVE
Sheet 1
Toshiba Matsushita Display Technology Co.,Ltd
Date: 2002-07-18
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TENTATIVE
Sheet 2
Caution and Handling Precaution
For your end user's safety, it is strongly advised that the items with "?" should be included in the instruction manual of the
system which may be issued by your organization.
For Safety
Warning
(1) Toshiba Matsushita Display Technology's Standard LCD modules without backlights have not been customized for
operation in extreme environments or for use in applications where performance failures could be life-threatening or
otherwise catastrophic.
Since they must never be installed in aircraft navigation control systems (such as, but not limited to Traffic Collision
System and Air traffic Indicator), in military defense or weapons systems, in critical industrial process-control systems
(e.g., those involved in the production of nuclear energy), or in critical medical device or patient life-support systems.
(2) DISCONNECT POWER SUPPLY before handling LCD module without backlight.
DO NOT TOUCH the circuit of module without backlight under operation, because high voltage is impressed partially
such as the coil etc. on PCB.
Caution
(1) DO NOT DISASSEMBLE OR MODIFY the module.
Sensitive parts inside LCD module without backlight may be damaged, and dusts or scratches may mar the displays.
Toshiba Matsushita Display Technology Co., Ltd.does not warrant the modules without backlights, if customer
disassembled or modified them.
?(2) DO NOT INGEST liquid crystal material, DO NOT INHALE this material, and DO NOT PERMIT this material to contact
the skin, if LCD panel is broken and liquid crystal material spills out.
In the event of inadvertent contact, immediately rinse the mouth or eyes with adequate water. If this material should
inadvertently contact the skin or clothing, wash immediately with alcohol and then rinse thoroughly with water.
?(3) BE CAREFUL WITH CHIPS OF GLASS that may cause injuring fingers or skin, when the glass is broken.
This module without backlight should be careful enough at the glass edge not to cut hand etc. for bare glass.
(4) DO NOT EXCEED the absolute maximum rating values under the worst probable conditions caused by the supply
voltage variation, input voltage variation, variation in parts' constants, ambient temperature, etc., otherwise LCD module
without backlight may be damaged.
(5) Suitable protection circuit should be applied for each system design.
DO NOT MODIFY the fuse used in the module. It may cause overheat and/or burning if dusts or metal particles are on
the PCBs in the LCD module without backlight.
Toshiba Matsushita Display Technology Co.,Ltd
Date: 2002-07-18
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Sheet 3
(6) Be sure that power supply output from the system should be limited to smaller values than listed shown below. (For
example Quick Arcing Fuse with listed ratings can be used.)
It is because this LCD module without backlight explained in this specification has a current limiter, with such function at
power input line(s). But it may be some possibility of overheat and/or burning of LCD module without backlight and its
peripheral devices before current limiter of the module without backlight when open-short test of the module without
backlight is performed by using power supply higher than following recommended value.
Power
supply
Recommended maximum
output current of
power supply
Recommended Fuse Rating
(in case of using fuse
for current limiter)
Built-in Fuse Rating
(for reference)
VDD
(7) Always comply with all applicable environmental regulations, when disposing of LCD.
4.0 A 1.25 A 1.25 A
For Designing the System
(1) When assembling the glass portion into the backlight unit, determine a positioning part and fix the circumference of glass
on a double-sided tape etc. Mechanical parts should be designed so that stress may not be applied to inlet of the glass
downside. When assembling the PCB portion into the set, fix PCB in places other than part mounting domain.
(2) Power supply lines should be designed as follows.
Power supplies should always be turned on before the input signals are supplied to LCD module without backlight, and
the input signals should be disconnected before power supplies are turned off.
If the sequence does not satisfy specified conditions, it may cause miss-operation of the panel.
Refer to "2.4.2 Sequence of Power Supplies and Signals" for the detailed specification.
(3) The set case should be designed so that stress such as twist and bend may not be applied to module when assembling
the glass portion into the backlight unit and using the set.
The set case should be designed so that stress such as twist, bend and stretching may not be applied to the connection
of TAB when bending TAB at the process of assembly.
(4) This LCD is designed for note PC and assumes about 2000 cd/m2 as luminance of the backlight used.
When the backlight of the luminance beyond 2000 cd/m2 is used, luminance should be set up after evaluating enough
the product characteristics, such as module display operation, grace and reliability and checking that it is satisfactory.
(5) Please adjust inverter circuit parameters, such as capacitor, resistor, to assure the display quality is maintained.
There is a possibility that flicker is observed by the interference of LCD operating signal timing and FL driving condition
(especially driving frequency).
(6) In case of severe environmental condition like outdoor usage, a proper transparent protective cover(lens) over LCD
module without backlight is recommended to apply in order to prevent scratches, and invasion of dust, water, etc., from
the system's window onto LCD module without backlight.
Ultra-violet ray cut filter is recommended to apply onto LCD module without backlight for outdoor operation. Strong
ultra-violet ray may cause damage the panel.
(7) Design the system not to display same pattern for a long time in order to prevent image sticking on the panel. Note that
incorrect sequence of power supplies and input signals may cause the sticking on the panel, too.
Toshiba Matsushita Display Technology Co.,Ltd
Date: 2002-07-18
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Sheet 5
For Installation in Assembly
(1) The C-MOS LSIs used in LCD module without backlight are very sensitive to ESD (Electro-static Discharge).
Ambient humidity of working area is recommended to be higher than 50%(RH).
Person handling LCD module without backlights should be grounded with wrist band. Tools like soldering iron and screw
driver, and working benches should be grounded.
The grounding should be done through a resistor of 0.5-1M? in order to prevent spark of ESD.
(2) When remove protection film from LCD panel, peel off the film slowly (more than three seconds) from the edge of the
panel, using a soft-pointed tweezers covered by teflon or adherent tape.
(3) Reduce dust level in working area. Especially the level of metal particle should be decreased.
Use finger stalls or soft and dust-free gloves in order to keep clean appearance of LCD module when handled for
incoming inspection and assembly.
?(4) When LCD panel becomes dirty, wipe off the panel surface softly with absorbent cotton or another soft cloth.
If necessary, breathe upon the panel surface and then wipe off immediately and softly again.
If the dirt can not be wiped off, absorbent cotton wetted a little with normal-hexane or petroleum benzine can be used for
wiping the panel.
Be careful not to spill this solvent into the inside of LCD module. Driver ICs and PCB area used inside LCD module may
be damaged by the solvent.
?(5) AVOID THE CONDENSATION OF WATER
Wipe off a spot or spots of water of mist and chemicals of mist on LCD panel softly with absorbent cotton or another cloth
as soon as possible if happened, otherwise discoloration or stain may be caused. If water invade into LCD module, it
may cause LCD module damages.
?(6) Do not expose LCD module to the gas (which is not normally contained in the atmosphere), it may cause mis-operation
or defects.
?(7) DO NOT APPLY MECHANICAL FORCES.
Do not bend or twist LCD module without backlight even momentary when LCD module without backlight is installed an
enclosure of the system. Bending or twisting LCD module without backlight may cause its damages.
Make sure to design the enclosure that bending/twisting forces are not applied to LCD module without backlight when it
is installed in the system.
Refrain from strong mechanical shock like dropping from the working bench or knocking against hard object.
These may cause glass of the panel crack, damage of FL or other mis-operation.
?(8) Refrain from excessive force like pushing the surface of LCD panel. This may cause damage of the panel or electrical
parts on PCB.
?(9) Do not put heavy object such as tools, books, etc., and do not pile up LCD modules.
Be careful not to touch surface of the polarizer laminated to the panel with any hard and sharp object. The polarizer is so
soft that it can easily scratched, even the protect film covers it.
(10) When inserting or disconnecting the connectors to LCD module, be sure not to apply force against PCB, nor connecting
cables, otherwise internal connection of PCB and TAB drivers may be damaged.
Do not fasten screws while putting cables like those for interface or FL between LCD module without backlight and the
enclosure.
Toshiba Matsushita Display Technology Co.,Ltd
Date: 2002-07-18
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(11) Be careful not to pull or not to hurt the FPC (Flexible Printed Circuit) cables.
(12) Power supplies should always be turned off in assembling process.
Do not connect or disconnect the power cables and connectors with power applied to LCD module without backlight.
This may cause damage of module circuit.
The signal should be applied after power are turned on. And the signal should be removed before power supplies are
turned off. (Refer to "For Designing The System"(2).)
?(13) When module without backlight is carried by hand, please hold the glass edge with both hands.
If PCB and TAB are held, it will become the cause of failure and It may be some possibility of overheat and/or burning of
module without backlight
If the surface and the back of glass are held directly, it will become the cause of poor display such as scratch and stain.
In addition, when module without backlight is carried by hand, wear finger sack or soft glove out of which dust dose not
come, and be careful not to cut a hand with edge of glass etc.
TENTATIVE
Sheet 6
For Installation in Backlight Unit
When assembling this module without backlight into the backlight unit and mechanical component, introduce electro static
destruction countermeasure as follows into the process of assembly, and be careful not to destroy module without
backlight with static electricity.
(1) Clothes
Please wear electric conduction shoes.
Please use list strap with cable.
(2) Environment of process
Please use floor as electric conduction floor.
The work stand surface on which module without backlight is put should use conductive rubber mat.
Please ground conductive rubber mat.
Module without backlight should prevent from touching direct matal.
Module without backlight should remove static electricity by ionizer.
Please determine the distance from ionizer to module without backlight after checking the effect which removes static
electricity.
Please turn the blow direction of ionizer to the place which static electricity generates.
The amount of electrifications at the time of non-working at the process should be controlled less than 300V.
Toshiba Matsushita Display Technology Co.,Ltd
Date: 2002-07-18
Date: - -
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New No. NL-LTH15C503-A-01
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Protection
Protection
LCD
Protection Film
Specification No.
(3) Notes at the time of protection film exfoliation
Please pull the protection film in parallel to glass surface and exfoliate protection film slowly (more than three seconds).
Ionizer
pull upward
blow
Electric conduction rubber mat
Please blow the portion which exfoliates the protection film by ionixer.
LCD should be placed on the grounded electric conduction rubber mat.
When sticking the exfoliative protection film on LCD again, please stick it after removing static electricity.
It is the same when sticking a new protection film.
Please remove product label on the protection film after removing the protection film in order to prevent damage to cell.
(4) Check item
The ion balance of ionizer should be measured periodically and should be adjusted.
Ionizer should be cleaned once per week.
Please check list strap by the list strap checker whenever starting work.
Please check the conductive check of electric conduction shoes whenever starting work.
(5) Air conditioning
Humidity should be controlled at 50?20 (%(RH)).
Temperature should be controlled at 20?5 (?C)
Wind direction and wind power of air-conditioner should be adjusted so that wind of air-conditioner may not hit a LCD
directly.
(6) Takeout of module without backlight from packing tray
When taking module without backlight from packing tray and putting it on worktable, please put it on worktable after
removing static electricity by ionizer.
When taking module without backlight from packing tray, be careful to catch neither PCB nor TAB in packing carton and
tray.
(7) Transportation at line
When transporting module without backlight with a cart etc., the cart should be grounded by chain etc.
Film
LCD
TENTATIVE
Film
LCD
pull in parallel
Sheet 7
Toshiba Matsushita Display Technology Co.,Ltd
Date: 2002-07-18
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Specification No.
(8) Implement
When using a metal implement, please use it after making it discharge once.
When testing LCD and processing LCD, please ground the portion in contact with LCD of implement.
When connecting a signal cable to module without backlight for check of operation etc., please connect a cable to module
without backlight after fully removing the static electricity of LCD.
TENTATIVE
Sheet 8
For Transportation and Storage
(1) Do not store LCD module without backlight in high temperature, especially in high humidity for a long time (approximately
more than one month).
It is recommended to store LCD module without backlight where the temperature is in the range of 0 to 35 ?C and the
relative humidity is lower than 70%.
(2) Store LCD module without backlight without exposure to direct sunlight or fluorescent lamps in order to prevent the
module from strong ultra violet ray.
?(3) Avoid condensation of water on LCD module without backlight, otherwise it may cause mis-operation or defects. Keep
away LCD module without backlight from such ambient.
(4) In case of transportation of storage after opening the original packing. LCD module without backlight are recommended
to be repacked into the original packaging with the same method, especially with same kind of desiccant.
Toshiba Matsushita Display Technology Co.,Ltd
Date: 2002-07-18
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New No. NL-LTH15C503-A-01
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s due to disconnection between panel
s due to disconnection between panel
s due to disconnection between panel
NG OK OK NG NG NG
Handling Notice
(1) How to pull out from carton
(2) How to pull out from tray
Pull up at both side of outer sack.
Notice: Do not tilt bag.
Insert fingers between tray and panel.
Bring up slowly.
OK
Specification No.
TENTATIVE
Do not pull up by only one hand.
Do not handle by only one hand.
It’
and TAB-ICs.
Do not handle at PCB.
It’
and TAB-ICs.
Do not turn over.
It’
and TAB-ICs.
Sheet 9
Toshiba Matsushita Display Technology Co.,Ltd
Date: 2002-07-18
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OK
Specification No.
(3) How to return the module without backlight to the tray
OK
TENTATIVE
Keep straightly panel and PCB.
Sheet 10
Notice: Do not put TAB-ICs on projections.
Put on slowly.
Toshiba Matsushita Display Technology Co.,Ltd
Date: 2002-07-18
Date: - -
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New No. NL-LTH15C503-A-01
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